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dimulka [17.4K]
3 years ago
13

The functions q and r are defined as follows. HELP PLEASE

Mathematics
1 answer:
dusya [7]3 years ago
7 0

Answer:

-22

Step-by-step explanation:

First do r(3) by replacing x with 3 in r:

2*3^2 + 2 = 2*9 + 2 = 18 + 2 = 20

Then replace r(3) with 20 to do q(20):

-20-2 = -22

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Suppose that the sitting​ back-to-knee length for a group of adults has a normal distribution with a mean of mu equals 22.1 in.
nadya68 [22]

Answer:

Step-by-step explanation:

Given that  the sitting​ back-to-knee length for a group of adults has a normal distribution with a mean of mu equals 22.1 in. and a standard deviation of sigma equals 1.2 in.

We have to find values of x such that

P(X\geq a) \leq 0.01\\ and

P(X\leq b) \leq 0.01

a=2.33 and b =-2.33 as z values

Let us convert to X values

x=22.1-2.33(1.2) \\x=22.1+2.33(1.2)\\

i.e. values below 19.304 and above 25.496

Hence for x below 19.304 and above 25.496 are significantly low and high.

24.2 length is not significantly high.

4 0
3 years ago
3. Write a simplified algebraic expression for<br> the model
ICE Princess25 [194]

The simplified algebraic expression for the model is x = -1

<h3>What are algebraic expressions?</h3>

Algebraic expressions are known as mathematical statements gotten when operations such as addition, subtraction, multiplication, division, etc. are operated or used on variables and constants

From the figure given;

We have:

  • x
  • x
  • -x
  • (- 1) ^6
  • (1) ^5

Now, let's add the variables

= x + x - x

= 2x - x

= x

For the constants

= -1^6 = -1

= 1 ^5 = 1

= 1 × -1 = -1

Thus, the simplified algebraic expression for the model is x = -1

Learn more about algebraic expressions here:

brainly.com/question/4344214

#SPJ1

8 0
1 year ago
Adam is carrying books to the classroom for his teacher. Each book weighs 3.85 pounds. If he carries 4 books, about how many pou
Sloan [31]
Correct answer should be = 15.4 pounds.
8 0
3 years ago
Evaluate the expression when a=3.<br> a^2+12
melomori [17]

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The answer is 21.

7 0
4 years ago
Read 2 more answers
What percent of 13 is 25?
kondor19780726 [428]
13 is 52% of 25.

Hope This Helps You!
Good Luck Studying :)
4 0
4 years ago
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